com.groupbyinc.common.jackson.databind.MappingJsonFactory Maven / Gradle / Ivy
package com.fasterxml.jackson.databind;
import java.io.IOException;
import com.fasterxml.jackson.core.*;
import com.fasterxml.jackson.core.format.InputAccessor;
import com.fasterxml.jackson.core.format.MatchStrength;
/**
* Sub-class of {@link JsonFactory} that will create a proper
* {@link ObjectCodec} to allow seam-less conversions between
* JSON content and Java objects (POJOs).
* The only addition to regular {@link JsonFactory} currently
* is that {@link ObjectMapper} is constructed and passed as
* the codec to use.
*/
public class MappingJsonFactory
extends JsonFactory
{
private static final long serialVersionUID = -1; // since 2.7
public MappingJsonFactory()
{
this(null);
}
public MappingJsonFactory(ObjectMapper mapper)
{
super(mapper);
if (mapper == null) {
setCodec(new ObjectMapper(this));
}
}
public MappingJsonFactory(JsonFactory src, ObjectMapper mapper)
{
super(src, mapper);
if (mapper == null) {
setCodec(new ObjectMapper(this));
}
}
/**
* We'll override the method to return more specific type; co-variance
* helps here
*/
@Override
public final ObjectMapper getCodec() { return (ObjectMapper) _objectCodec; }
// @since 2.1
@Override
public JsonFactory copy()
{
_checkInvalidCopy(MappingJsonFactory.class);
// note: as with base class, must NOT copy mapper reference
return new MappingJsonFactory(this, null);
}
/*
/**********************************************************
/* Format detection functionality (since 1.8)
/**********************************************************
*/
/**
* Sub-classes need to override this method
*/
@Override
public String getFormatName()
{
/* since non-JSON factories typically should not extend this class,
* let's just always return JSON as name.
*/
return FORMAT_NAME_JSON;
}
/**
* Sub-classes need to override this method
*/
@Override
public MatchStrength hasFormat(InputAccessor acc) throws IOException
{
if (getClass() == MappingJsonFactory.class) {
return hasJSONFormat(acc);
}
return null;
}
}